Discussion on the working characteristics of LED light source

Introduction: in the selection of LED driver IC, should pay attention to what performance indicators and methods of use?

LED lamps of high energy saving, long life, environmental benefits of superior performance has been widely recognized. In the field of LED lighting, in order to reflect the LED lamp energy saving and long life characteristics, the correct choice of LED driver IC is essential. There is no good driver IC match, the advantages of LED lighting can not be reflected. So in the selection of LED driver IC, should pay attention to what performance indicators and methods of use?

Discussion on the working characteristics of LED light source

1, LED high energy saving

DC drive, ultra low power (single tube 0.03~1W) electro-optical power conversion close to 100%, the same lighting effect than the traditional light source energy saving more than 80%.

2, LED long life

LED light source is called longevity lamp. Solid-state light, epoxy resin packaging, light body and no loose parts, there is no filament burnability, thermal deposition, fast decay and other shortcomings, the service life of up to 50 thousand to 100 thousand hours, 10 times longer than traditional light source life above.

3, LED benefit environmental protection

LED is a kind of green light source. No ultraviolet and infrared spectrum, low heat and no stroboscopic, no radiation, no pollution and waste Recyclable, no mercury, cold light, safe touch, which belongs to the typical green lighting source.

Working characteristics of LED light source

Lighting with LED light source VF voltage are very low, usually 2.75~3.8V, IF is generally 15~1400mA. Thus, the output voltage of the LED drive IC is VFxN or VFx1, and the IF maintains a constant current at 15~1400mA. LED lamps use LED light source has small power (IF 15~20mA) and high power (IF greater than 200mA) two kinds.

Small power LED multi use to make LED fluorescent lamp, decorative lamp, grille lamp.

High power LED is used to do household lighting, spotlights, underwater lights, wall lights, street lights, tunnel lights, car lights, etc..

The power LED light source is a low voltage and high current driving device, and its luminous intensity is determined by the current flowing through the LED. The current is too large to cause LED light attenuation, the current is too small will affect the luminous intensity of LED. Therefore, the LED driver needs to provide a constant current power supply to ensure the safety of the use of high-power LED, while achieving the desired luminous intensity. In the field of LED lighting, in order to reflect the LED lamp energy saving and long life characteristics, the correct choice of LED driver IC is essential. There is no good driver IC match, the advantages of LED lighting can not be reflected.